Canon POWERSHOT A75 User Manual page 78

Shooting - Advanced Functions
76
• Please note that camera shake
becomes a factor at low shutter speeds.
If the camera shake warning _ appears
in the center of the LCD monitor, secure
the camera to a tripod before shooting.
• The aperture value and shutter speed
change according to the zoom state as
follows.
Shutter Speed
Aperture (seconds)
Shutter Speed Display
The numbers in the table below indicate
the shutter speed in seconds. For slower
speeds, quote marks indicate the
decimal place, so that 0"3 indicates 0.3
second and 2" indicates 2 seconds.
15" 13" 10"8"6" 5"4" 3"22"52" 1"61"3
1" 0"8 0"6 0"5 0"4 0"3
1/4 1/5 1t6 1/8 1/10 1/13 1/15 1/20 1/25 1/30
1/40 1/50 1/60 1/80 1/100 1/125
Wide Angle
Telephoto
F2.8
F3.2 - 4.0
F4.5 - 8.0
F4.8
F5.6 - 7.1
F8.0
to 1/1250
to 1/1600
to 1/2000
to 1/1250
to 1/1600
to 1/2000
• The fastest shutter speed for flash
synchronization is 1/500 second. The
camera automatically resets the shutter
speed to 1/500 second if a faster speed
is selected.
1/160 1/200 1/250 1/320 1/400 1/500
1/640 1/800 1/1000 1/1250 1/1600
1/2000
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Av
Setting the Aperture
The aperture adjusts the amount of light that
passes through the lens. Selecting a lower
aperture value (opening the aperture) allows
you to fade the background.
A higher aperture value (closing it) brings the
entire range from foreground to background
into focus.